<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>立体文字</title>
  <style>
    div {
      width: 200px;
      line-height: 68px;
      text-align: center;
      font-size: 48px;
      margin: 50px auto;
      color: hsl(0, 0%, 60%);
      text-shadow:
        1px 1px 0 hsl(0, 0%, 65%),
        2px 2px 0 hsl(0, 0%, 70%),
        3px 3px 0 hsl(0, 0%, 75%),
        4px 4px 0 hsl(0, 0%, 80%),
        5px 5px 0 hsl(0, 0%, 85%);
    }
  </style>
</head>

<body>
  <div>Shadow</div>
</body>

</html>